Question about Kenwood VR-405 Receiver

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Problem for Kenwood VR-405. Subwoofer has no sound coming from it. Sub is set to "on" in the menu and all speakers work in test mode. I have tried hooking devices individually with RCA's and also just taking the TV's audio via optics cable. What am I missing?

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  • forge_steve Jun 01, 2010

    Here is what I've done, so far.

    Comcast HD/DVD Box into Video 1 input on Kenwood.
    1. Via RCA cables All 5 satellite speakers work - NO SUB
    Tried scrolling through Manual, Digital etc... still NO SUB. Also scrolled through Stereo, Pro Logic, etc. Still NO SUB
    (On all the above settings audio had a slight delay to it so it didn't match the video)

    2. Optic cable from back of TV into Kenwood. Tried all the above mentioned settings and still NO SUB. (Although delay problem was fixed.)

    I also tried all the above with my Sony Blu-Ray player. All results were same.

    I just cracked that Kenwood out of the box, brand new. (Relative bought it in 2003ish and it was never used or even opened).

    Perhaps there is something wrong with the Kenwood system?


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How do i hook up my subwoofer to the back of my receiver

Posted on Oct 02, 2012

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How I fixed this was to get a can of electrical contact cleaner. Any auto parts store or electronics store will carry it. Take the cover off and remove the volume knob. It's responsible for the output volume to the sub. Pry the four silver tabs open and pull apart the knob. You should see some corrosion on the contacts. Use a fingernail file to clean them off now clean it with the contact cleaner. Put it back together and you are ready to go.

Posted on Jul 19, 2012

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